valid.js
1.5 KB
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import extend from '../utils/extend';
import { createUTC } from './utc';
import getParsingFlags from '../create/parsing-flags';
import some from '../utils/some';
export function isValid(m) {
if (m._isValid == null) {
var flags = getParsingFlags(m),
parsedParts = some.call(flags.parsedDateParts, function (i) {
return i != null;
}),
isNowValid =
!isNaN(m._d.getTime()) &&
flags.overflow < 0 &&
!flags.empty &&
!flags.invalidEra &&
!flags.invalidMonth &&
!flags.invalidWeekday &&
!flags.weekdayMismatch &&
!flags.nullInput &&
!flags.invalidFormat &&
!flags.userInvalidated &&
(!flags.meridiem || (flags.meridiem && parsedParts));
if (m._strict) {
isNowValid =
isNowValid &&
flags.charsLeftOver === 0 &&
flags.unusedTokens.length === 0 &&
flags.bigHour === undefined;
}
if (Object.isFrozen == null || !Object.isFrozen(m)) {
m._isValid = isNowValid;
} else {
return isNowValid;
}
}
return m._isValid;
}
export function createInvalid(flags) {
var m = createUTC(NaN);
if (flags != null) {
extend(getParsingFlags(m), flags);
} else {
getParsingFlags(m).userInvalidated = true;
}
return m;
}